Hybrid Tea Rose plant cv. Arotigy

ABSTRACT

This invention relates to a new and distinct variety of hybrid tea rose plant cv. Arotigy, identified by its clusters of bright yellow flowers, the petal edges of which are bordered with red.

The present invention relates to a new and distinct variety (cv.Arotigy) of rose plant of the hybrid tea class. The plant is an averageheight, hardy outdoor seedling of the bush type, cultivated for gardendecoration. It was first originated by Jack E. Christensen in Ontario,Calif., U.S.A. under conditions of careful control and observation, andhas as its seed parent the floribunda rose, Gingersnap (U.S. Plant Pat.No. 4,330), and as its pollen parent, the grandiflora rose Macbern (U.S.Plant Pat. No. 4,063).

The new rose cv. Arotigy is particularly distinguishable from othercommercialized rose cultivars by the following combination ofcharacteristics: its bright yellow blossoms having a red border on thepetal margins, the red border developing in the absence of strongsunlight; the light and spicy fragrance of its blossoms; and theclustering of its blooms, 2 to 4 flowers per stem, essentially asdescribed and illustrated herein.

Arotigy holds its distinguishing characteristics through succeedingpropagations by cuttings, budding and in vitro culture.

The new variety cv. Arotigy may be distinguished from its seed parent,Gingersnap, by the following combination of characteristics: WhereasGingersnap is a floribunda rose, Arotigy is a hybrid tea rose. Theflower color of Arotigy is a bright yellow with a red border on thepetal margins whereas the flower color of Gingersnap is a pure orange.

The new variety may be distinguished from its pollen parent, Macbern, bythe following combination of characteristics: Whereas the flower colorof Macbern is a medium yellow, the flower color of Arotigy is a brightyellow with a red border on the petal margins. Macbern rose plants growsignificantly larger than plants of Arotigy. Whereas the foliage ofMacbern is very glossy, the foliage of Arotigy is non-glossy.

The accompanying drawing illustrates the new variety in color as grownin Somis, Calif., and shows the flowering thereof from bud to fullbloom.

The descriptive matter which follows pertains to roses of the newvariety grown in the outdoors in Somis, Calif., and is believedgenerally to apply to similar conditions elsewhere. Plants and flowersof the new variety grown in other locations may vary in slight detailaccording to the climatic, soil and cultural conditions under which thevariety is grown.

Throughout this specification, color names beginning with a small lettersignify that the name of that color as used in common speech is aptlydescriptive. Color names beginning with a capital letter designatevalues based upon the R.H.S. Colour Chart of The Royal HorticulturalSociety of London, England.

FLOWER

The new variety sometimes bears its flowers singly, usually two to threeto a stem in irregular clusters. Flowers are borne on weak to averagestrength stems that are average to long in length for the class. In thegreenhouse and outdoors, the plant blooms in moderate abundance andintermittently during the growing season. Blooms have a light and spicyfragrance.

BUD

The peduncle is of average length for the class, of slender to averagecaliper, and slightly bending. The peduncle is almost smooth with somestipitate glands. Bud color is near Green 143B.

Before the calyx breaks, the bud is small in size for the class, ovoidin form with a conspicuous neck. There are few stipitate glands on thesurface of the bud, and slender, serrate, bristle-like foliaceous partsextending beyond the tip of the bud and equal to three quarters or moreof its length.

As the calyx breaks, sepals are near Green 143B and near Yellow 4Bbetween the sepals, tinted with near Red 39A.

The inner surface of the sepals bears a fine wooly tomentum. Sepalmargins are lined with stipitate glands and hairs.

As the first petal opens, buds are small in size for the class, shortand pointed to ovoid in shape. Color of the outside and inside of thebud petals is an orange-red-yellow blend, the yellow (near Yellow 5A) isthe predominant color, and is overlaid with a bright red-orange (nearRed 43A) color, which is more concentrated along the petal margin, andwhich extends 1/3 the way down the inside and outside petal surface.

The bud opens up well and is not prevented from opening by cold, hot,wet or dry weather.

BLOOM

The size of the bloom when fully open is small to average for the class,about 21/2 to about 3 inches in diameter. Petalage is double, averagingfrom about 28 to 30 petals arranged regularly, plus 2 to 3 petaloids. Atone-half open, blooms are somewhat high-centered in form, with spiraledcupped petals. Petal edges are reflexed outward. When fully open, bloomsare cupped with petals similarly cupped, the petal edges moderatelyreflexed outward. Inside petals may be irregularly arranged.

The petals are heavy in substance, thick in texture and slightly satinyon the inside and outside surface. Outside petals are nearly round inshape with tips usually bearing one to two notches. Intermediate petalsare nearly round to broadly obovate with rounded tips usually bearingone to two notches. Inside petals are nearly oval with tips usuallybearing one to two notches.

The following paragraph describes the color values observed in a newlyopened flower from a plant of the new variety grown outdoors in Somis,Calif. in October of 1987.

The outside surface of the outside petals is near Yellow 8A in color,and bordered with near Red 43A at the petal margins which bleeds downthe petal surface about 1/4 inch from the margin. The inside surface ofthe outside and inner petals is near yellow 9A in color, bordered at thepetal margins with near Red 43A. The outside surface of the intermediateand inner petals is near Yellow 9A in color and bordered with near Red43A at the petal margins which bleeds down the petal surface about 1/4inch from the margin.

Petal colors may be modified by being washed or tinted with othercolors.

The following paragraph describes the color values observed in a floweropen for three days outdoors from a plant of the new variety in October,1987 at Somis, Calif.

The color of the outside surface of both the outside and inside petalsis pale yellow, near Yellow 10D in color, bordered at the petal marginswith a pale red, near Red 39B which bleeds down the petal surface about1/4 inch from the margin. The inside surface of the outside petals is apale yellow-green, near Yellow 1C, bordered at the petal margins with apale red, near Red 39B, which bleeds down the petal surface about 1/4inch from the margin. The inside surface of the inside petals isapproximately the same as the outside surface of the inside petal exceptthe yellow color is less pale, near Yellow 2B.

The general color effect of newly opened flowers is a bright yellow witha red border along the petal margins. Flowers open for three days are apaler yellow with a pale red border along the petal margin.

Petals usually drop off cleanly and are not particularly affected byhot, wet or dry weather. Flowers on garden plants last from 3 to 4 daysin the month of October. Cut flowers from rose plants grown outdoorslast from 2 to 3 days in October when kept at living room temperatures.

REPRODUCTIVE ORGANS

Stamens are few to average in number and arranged irregularly about thepistils; a few may also be mixed with petaloids or tucked in with thecalyx. Filaments are short in length and few are without anthers.Anthers are of average size and open all at once. Mature anthers arenear Yellow-Orange 20A in color; immature anthers are near Yellow-Orange19A in color. Pollen is produced in moderate quantities and is nearYellow-Orange 20B in color.

Pistils are few to average in number for the class (about 27). Stylesare uneven, of thin caliper and of average length. Styles are looselybunched. Stigma color is near Yellow-Orange 19B on the surface andpink-red, near Red 39B, just below the surface. Some ovaries areenclosed in the calyx and some protrude therefrom.

The variety appears to be highly female sterile as the flower andpeduncle die before the hip is formed.

The recurved sepals fall soon.

FOLIAGE

The compound leaves comprise 3 to 5 leaflets. Leaves are borne inaverage quantities, are average in size for the class, of moderate toheavy weight and are non-glossy. Leaflets are oval in shape, with acuteapices; their bases are round and margins are dentate.

The color of the mature upper leaf surface is near Green 139A; themature lower leaf surface is near Green 137D. New growth is nearGreyed-Purple 183B in color; the under surface of young leaves is nearRed-Purple 58A.

The rachis is of average size. Its upper side is grooved with fewstipitate glands on the edges. The underside is moderately smooth withfew stipitate glands.

Stipules are average in length for the class, of average width, and havemoderately short points, slightly recurved toward the stem.

Plants of the new variety are, on the average, more resistant to mildew,rust and blackspot than other cultivars now in commerce when grown undercomparable conditions at Somis, Calif.

GROWTH

Plants of the new variety are average in height, bushy and compact inhabit. Plant growth is vigorous. Canes are of average caliper for theclass. The main stems are Green 137D in color. They bear few to severallarge thorns which are moderately short for the class and almoststraight. Large thorns are near Yellow-Green 154C in color. The thornbase is moderately short and narrow. There are few small prickles, nearGreyed-Orange 176C in color and no hairs.

Branches are between near Green 143B and Green 143C in color; they bearno large thorns, no small prickles and no hairs.

New shoots are near Yellow-Green 146C in color. New shoots bear no largethorns, no small prickles and no hairs.

I claim:
 1. A new and distinct variety of hybrid tea rose plant cv.Arotigy, and the parts thereof, being particularly characterized by itsbright yellow blossoms having a red border on the petal margins, the redborder developing in the absence of strong sunlight; the light and spicyfragrance of its blossoms; and the clustering of its blooms, two to fourflowers per stem, essentially as described and illustrated herein.